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下面为大家整理一篇优秀的paper代写范文- Nano technology’s application in material science，供大家参考学习，这篇论文讨论了纳米技术在材料学中的应用。纳米技术是当今世界上最先进的技术之一，它指的是一大批具有纳米级颗粒操作的创新技术，这也是一种量子领域的规模。以纳米金属材料为例，利用纳米尺度的高表面活性，金属表面容易氧化，形成超薄、致密的氧化层，从而稳定了材料表面，防止了进一步的腐蚀。

As one of the most advanced technology in the world today, nano technogy refers to a bunch of innovative technologies with manipulation of nanometer-size particles. Because the limitation of particle size from 1 nanometer to 100 nanometers which is also a quantum-realm scale, nanotechnology is always operated onan atomic and molecular scale, in the process of which quantum mechanical plays a crucial role. Nanotechnology can be applied in many industries, like material science, micro-electrics and medical fields. Among all the applicable fields, the application of nanotechnology in material science best takes advantage of quantum mechanical in the process. The outstanding character of nano-material is its successful realization of high function material in a small-scale material with high specific surface area, complicated structure and high integration level(Langer and Weissleder 135).

Surface and interface effects: The surface and interface effects in nano-material increases the ration of surface atoms to total atoms because of the material nano-scale, endowing special features of nano-materials(Dong and Pan 996-1002). Take nano-metal materials for example that with the high surface activity endowed by nano-scale, it is much easier for surface metal to get oxidized and form a super thin and dense oxide layer, which would stabilizemetal material surface and prevent further corrosion.

Quantum size effect: As the best example of quantum mechanic’s presentation in nano-technology, nano material presents many special features. According to Shanenko, Croitoruand Peeters (498)，the electron energy level would split from continuous energy level to discrete energy level, which would cause the change of material heat, light, electricity properties because of quantum effect of nano-material when thelevel spacing is larger enough(Dzyuba, Kulchin and Milichko 1-8). For example, there would likely to be a drop of melting point of nano-material because of its high surface energy. Moreover, nano-material is likely to have better sintering property with the ability to be sintered in a lower temperature, making nano-material excellent sintering aids.

Macroscopic quantum tunneling effect: According to Liang et al (415302)，macroscopic quantum tunneling effect refers to the ability of microscopic particle to transmit potential barriers. Because of the special property of nano-size particle, there will be macroscopic quantum tunneling effect in nano-material. For example, the microscopic nickel particle would likely to present the ability of para-magnetism, which would likely to be found on normal nickel particle.

With nano-size particle in the material, many special properties of nano-materials are found in nanno-material. Because of the special heat, magnetic, and intensity properties, nano material can be applied in many special fields in contemporary society.

Catalyst: Because of the high specific surface area, nano-material used as catalyst can increase the reaction rate more than ten times (Freund et al. 8148-67), which realized a much larger contact area of catalyst with other reagents in a chemical reaction compared to regular non-nano catalyst. With the increase in catalyst efficiency, it is possible for people to conduct more reactions in a certain time, which can improve human society in a more efficient way.

Medicine science: The application of nano-material in the field of medicine makes it possible to precisely kill certain virus whose size is also 1-100 nanometers. Because of the same or even smaller size of nano-material, nano-medicine can realize a precise attack on target virus, which would not only increase medicine efficiency and decrease medicine dose, but also reduce side effect caused by the application of certain dosage.

In conclusion, nano-material has realized many ‘mission impossible’, mostly because of special properties caused by its nano-size particles, among which quantum mechanical plays a quite important role. In the future, the application of nano-material is likely to be more and more popular. Nowadays, the bottleneck in the development process of nano-material concentrates on the manufacturing process of nano-material. With improvement in nano-material manufacturing technology, nanomaterial would enjoy a much wider application in the future.

Reference

Dong, CY, Pan, En.“Boundary element analysis of nano in homogeneities of arbitrary shapes with surface and interface effects”. Engineering analysis with boundary elements 35.8 (2011): 996-1002. http://www.sciencedirect.com/science/article/pii/S0955799711000567?via%3Dihub#aep-abstract-id9. 22 June, 2017.

Dubinko, Vladimir. “Quantum Tunneling in Breather Nano-colliders”.Physics 23.1 (2015): 123. http://xueshu.baidu.com/s?wd=paperuri%3A%28ef962669b3588733ee3abe17582b47f4%29&filter=sc_long_sign&tn=SE_xueshusource_2kduw22v&sc_vurl=http%3A%2F%2Farxiv.org%2Fabs%2F1503.09119&ie=utf-8&sc_us=4101515972578453615. 22 June, 2017.

Dzyuba, Vladimir, Kulchin, Yurii, and Milichko, Valentin. “Effect of the shape of a nano-object on quantum-size states”.Journal of Nanoparticle Research 14.11 (2012): 1-8.http://xueshu.baidu.com/s?wd=paperuri%3A%2826ce6529e5d1e3472fd343b637627890%29&filter=sc_long_sign&tn=SE_xueshusource_2kduw22v&sc_vurl=http%3A%2F%2Flink.springer.com%2Farticle%2F10.1007%2Fs11051-012-1208-7&ie=utf-8&sc_us=14776254851649787983. 22 June. 2017.

Freund, Hans-Joachim, et, al.“A Fresh Look at an Old Nano-technology: Catalysis”. Physical Chemistry Chemical Physics16.18 (2014): 8148-67.http://xueshu.baidu.com/s?wd=paperuri%3A%2894ecf51f3eb4e29049df012ecba63370%29&filter=sc_long_sign&tn=SE_xueshusource_2kduw22v&sc_vurl=http%3A%2F%2Feuropepmc.org%2Fabstract%2Fmed%2F24514759&ie=utf-8&sc_us=14839358825944313494. 22 June. 2017.

Langer, Robert, and Ralph, Weissleder.“Nanotechnology”.Jama 313.2 (2015): 135. http://xueshu.baidu.com/s?wd=paperuri%3A%284553bd5d03e7baa3b999ec7b114a32d0%29&filter=sc_long_sign&tn=SE_xueshusource_2kduw22v&sc_vurl=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpubmed%2F25585320&ie=utf-8&sc_us=3621148902818485519. 22 June. 2017.

Liang, Shijun. “Nonlinear Optional Properties in nanoring: Quantum size and magnetic field effect”. Journal of Physics Condensed Matter 23.41 (2011): 415302. http://xueshu.baidu.com/s?wd=paperuri%3A%285b8aba0192909353039bdf9faa3a7a1b%29&filter=sc_long_sign&tn=SE_xueshusource_2kduw22v&sc_vurl=http%3A%2F%2Feuropepmc.org%2Fabstract%2FMED%2F21952507&ie=utf-8&sc_us=15709415764769010852. 22 June. 2017.

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